Queen Anne Marie's wedding dress was by Jean Desses I believe.
Then all her day dresses and suits were copied from the Paris fashions by Dervis a famous couturier in Athens and Philimon. When in Rome she was attired by Emilio Shuberth.If we had access to the book "Eikones" which had many fantastic photographs of her we could start a paper trail.
She has given simplicity a new meaning with her ability to transform understadedness into a force we are now able to understand and admire greatly.